<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>箭头函数</title>
    <script>
        function haha(a,b) {
            return a+b;
        }

        console.log(haha(50,80));

        let hehe = function (b,c) {
            return b+c;
        }
        console.log(hehe(50,80))


        let heihei = (yun9,yun966) => yun9+yun966;

        console.log(heihei(50,80))
    </script>
</head>
<body>

</body>
</html>